Exam 8: Formation of the Solar System

According to our present theory of solar system formation,why were solid planetesimals able to grow larger in the outer solar system than in the inner solar system?

The age of our solar system is approximately

Process of Science: Now that Pluto is no longer considered a planet,the number if planets in the Solar System has dropped from 9 to 8.Does this mean that the nebular theory of the Solar System was incorrect?

Why are the inner planets made of denser materials than the outer planets?

We have direct evidence from ALMA that supports nebular theory.

What is the primary reason that astronomers suspect that some jovian moons were captured into their current orbits?

According to the nebular theory,what are asteroids and comets?

List at least three of the notable exceptions to the general patterns of the solar system.

According to our modern science,which of the following best explains why the vast majority of the mass of our solar system consists of hydrogen and helium gas?

Suppose you find a rock that contains 10 micrograms of radioactive potassium-40,which has a half-life of 1.25 billion years.By measuring the amount of its decay product (argon-40)present in the rock,you conclude that there must have been 80 micrograms of potassium-40 when the rock solidified.How old is the rock?

If we were to re-run the formation of the solar system,what would likely be the same and what would likely be different?

Explain why the early Earth did not form with water,and how it gained it later in its formation.

According to our theory of solar system formation,which law best explains why the central regions of the solar nebula got hotter as the nebula shrank in size?

What was the frost line of the solar system?

Which of the following is not a line of evidence supporting the hypothesis that our Moon formed as a result of a giant impact?

Why did the solar nebula flatten into a disk?

Process of Science: Are those who advocate creationism or "intelligent design" following the scientific method? Defend your answer.

The terrestrial planets are made almost entirely of elements heavier than hydrogen and helium.According to modern science,where did these elements come from?

According to present understanding,which of the following statements about the solar wind is not true?

What do meteorites reveal about the solar system?